USB Wifi streaming with Omega2

The recent Omega2 doc says that the PCB ceramic antenna gives it 100m of LoS WiFi range. And that the MT7688 is quite powerful; also that a USB streaming driver is available from OpenWRT.

I don't know what Mbps actual throughput the 100m range represents, but looks like WiFi streaming at 10-25 fps, 640*480 pixels from a mjpg outputting USB cam at 10-15m might be possible, with h264 over WiFi?

Could the situation get better with a u.fl external antenna which the doc days can be used alongside the PCB one?